Clearing Diagnostic Trouble Codes (DTC)

Fig. 17 Diagnostic Module:

All codes must be displayed at least once before codes can be cleared. A fault must be corrected before corresponding code can be cleared. If fault remains, system will store fault again.
1. Connect diagnostic module test lead to socket B5, Fig. 17, then turn ignition switch to On position.
2. Press test button and keep depressed for at least 5 seconds.
3. Release button. LED will light.
4. Press button again while LED is lit and keep depressing for at least 5 seconds.
5. Codes are now cleared.